But last week she received a $50 fine alleging she did not pay for parking, despite claiming to have �tagged on�.
�I use the carpark Monday to Friday,� she said.
�My friends also use the carpark, and each and every one of them has had this happen to them.�
PTA spokesman David Hynes said it was the responsibility of passengers to ensure they tagged on properly by waiting for the confirmation beep and the �Payment OK� message to appear on the screen.
However, Ms Freitag insists that she did tag on properly.
Opposition transport spokesman Ken Travers said the PTA needed to stop denying there were problems with the SmartParker system.
�There have been a number of reports of problems with the system and these require an investigation,� he said.
Mr Hynes said the SmartRider system, of which the SmartParker system is a component, was the best in the country.
�There are about 900,000 SmartRider transactions and about 16,000 SmartParker transactions every day,� he said.
�Transperth has had no reports of mechanical issues with the SmartParker machine at Mandurah Station on the day the passenger in question was infringed. In fact, almost 800 passengers were able to successfully pay for their parking using SmartParker at Mandurah that day.�
Mr Travers said customers should be given the benefit of the doubt.
�The PTA should be more understanding towards customers who regularly use the system but experience payment glitches,� he said.
�As customers are not issued with receipts, we believe they should be given the benefit of the doubt. It�s about providing good customer service to people who are trying to do the right thing.�
Meanwhile, Ms Freitag said despite her fine, driving to Perth was not an option.
She also appreciated the new SmartParker system, despite the fine.
�It does save a lot of time, because you don�t have to go all the way back to your car and put a ticket on the windscreen,� she said.
�Then there is no waste of paper and having to have $2 every day would be a pain.�
She said it would help customers if there was a phone number on the parking inspector�s booth.
Ms Freitag said this would prevent �the long dragged out process of trying to get the fine taken away�.